LEMON Manuals: Even more car manuals for everyone
Home >> Mazda >> 2014 >> 3 SV, Standard Trans >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Communication Devices >> Multiplex Communication System >> Determining Short Between Circuits Location (HS-Can) >> Determination Procedure

Determination Procedure

CAUTION:
  • When disconnecting the connector, verify that there is no looseness, damage, deformation, corrosion, or poor connection of the connector terminals.
  • When inspecting the DLC-2, touch it with a paper clip or similar thin pin without directly inserting a tester into the terminals.
  • Disconnect the negative battery cable before performing any work that requires handling of connectors.
DETERMINATION PROCEDURE DESCRIPTION

Step Inspection Action
1 INSPECT BETWEEN FRONT BODY CONTROL MODULE (FBCM) AND INSTRUMENT CLUSTER FOR SHORT BETWEEN CIRCUITS 
 Yes Go to Step 5.
No Go to the next step.
2 INSPECT FRONT BODY CONTROL MODULE (FBCM) FOR SHORT BETWEEN CIRCUITS 
 Yes Replace the front body control module (FBCM) because there is a short between circuits in the front body control module (FBCM).
(See FRONT BODY CONTROL MODULE (FBCM) REMOVAL/INSTALLATION .)
No Go to the next step.
3 INSPECT BETWEEN DSC HU/CM AND FRONT BODY CONTROL MODULE (FBCM) FOR SHORT BETWEEN CIRCUITS 
  • Inspect for continuity between DSC HU/CM terminals AF and AC.
  • Is there continuity?
 Yes Go to the next step.
No Go to Step 37.
4 INSPECT DSC HU/CM FOR SHORT BETWEEN CIRCUITS 
  • Disconnect the DSC HU/CM connector.
  • Inspect for continuity between DSC HU/CM terminals AF and AC (wiring harness side).
  • Is there continuity?
 Yes Repair or replace the wiring harness between the DSC HU/CM and front body control module (FBCM) because the wiring harness is shorted between circuits.
No Replace the DSC HU/CM because there is a short between circuits in the DSC HU/CM.
(See DSC HU/CM REMOVAL/INSTALLATION .)
5 INSPECT BETWEEN CONNECTOR C-01 AND INSTRUMENT CLUSTER FOR SHORT BETWEEN CIRCUITS 
 Yes Go to Step 8.
No Go to the next step.
6 INSPECT BETWEEN TCM AND CONNECTOR C-01 FOR SHORT BETWEEN CIRCUITS 
 Yes Go to the next step.
No Repair or replace the wiring harness between the front body control module (FBCM) and connector C-01 because the wiring harness is shorted between circuits.
7 INSPECT TCM FOR SHORT BETWEEN CIRCUITS 
  • Disconnect the TCM connector.
  • Inspect for continuity between TCM terminals E and F (wiring harness side).
  • Is there continuity?
 Yes Repair or replace the wiring harness between the TCM and connector C-01 because the wiring harness is shorted between circuits.
No Replace the TCM because there is a short between circuits in the TCM.
(See CONTROL VALVE BODY REMOVAL/INSTALLATION [FW6A-EL] .)
8 INSPECT BETWEEN CONNECTORS C-32 AND INSTRUMENT CLUSTER FOR SHORT BETWEEN CIRCUITS 
 Yes Go to Step 14.
No Go to the next step.
9 INSPECT BETWEEN DC-DC CONVERTER AND CONNECTOR C-32 FOR SHORT BETWEEN CIRCUITS 
 Yes Go to the next step.
No Go to Step 12.
10 INSPECT BETWEEN DC-DC CONVERTER AND CONNECTOR C-05 FOR SHORT BETWEEN CIRCUITS 
  • Disconnect connector C-05.
  • Inspect for continuity between DC-DC converter terminals A and C.
  • Is there continuity?
 Yes Go to the next step.
No Repair or replace the wiring harness between connector C-32 and connector C-05 because the wiring harness is shorted between circuits.
11 INSPECT DC-DC CONVERTER FOR SHORT BETWEEN CIRCUITS 
  • Disconnect the DC-DC converter connector.
  • Inspect for continuity between DC-DC converter terminals A and C (wiring harness side).
  • Is there continuity?
 Yes Repair or replace the wiring harness between the DC-DC converter and connector C-05 because the wiring harness is shorted between circuits.
No Replace the DC-DC converter because there is a short between circuits in the DC-DC converter.
(See DC-DC CONVERTER REMOVAL/INSTALLATION [I-ELOOP] .)
12 INSPECT BETWEEN AFS CONTROL MODULE AND CONNECTOR C-32 FOR SHORT BETWEEN CIRCUITS 
  • Inspect for continuity between AFS control module terminals A and B.
  • Is there continuity?
 Yes Go to the next step.
No Repair or replace the wiring harness between connector C-01 and connector C-32 because the wiring harness is shorted between circuits.
13 INSPECT AFS CONTROL MODULE FOR SHORT BETWEEN CIRCUITS 
  • Disconnect the AFS control module connector.
  • Inspect for continuity between AFS control module terminals A and B (wiring harness side).
  • Is there continuity?
 Yes Repair or replace the wiring harness between the AFS control module and connector C-32 because the wiring harness is shorted between circuits.
No Replace the AFS control module because there is a short between circuits in the AFS control module.
(See ADAPTIVE FRONT LIGHTING SYSTEM (AFS) CONTROL MODULE REMOVAL/INSTALLATION .)
14 INSPECT BETWEEN CONNECTOR C-03 AND INSTRUMENT CLUSTER FOR SHORT BETWEEN CIRCUITS 
 Yes Go to the next step.
No Repair or replace the wiring harness between connector C-32 and connector C-03 because the wiring harness is shorted between circuits.
15 INSPECT BETWEEN CONNECTOR C-12 AND INSTRUMENT CLUSTER FOR SHORT BETWEEN CIRCUITS 
 Yes Go to Step 22.
No Go to the next step.
16 INSPECT BETWEEN LASER SENSOR/FORWARD SENSING CAMERA (FSC) AND CONNECTORS C-12 FOR SHORT BETWEEN CIRCUITS 
 Yes Go to the next step.
No Repair or replace the wiring harness between connector C-03 and connector C-12 because the wiring harness is shorted between circuits.
17 INSPECT BETWEEN CONNECTOR C-42 AND LASER SENSOR FOR SHORT BETWEEN CIRCUITS 
  • Disconnect connector C-42.
  • Inspect for continuity between laser sensor terminals D and C.
  • Is there continuity?
 Yes Go to the next step.
No Go to Step 19.
18 INSPECT LASER SENSOR FOR SHORT BETWEEN CIRCUITS 
  • Disconnect the laser sensor connector.
  • Inspect for continuity between laser sensor terminals D and C (wiring harness side).
  • Is there continuity?
 Yes Repair or replace the wiring harness between the laser sensor and connector C-42 because the wiring harness is shorted between circuits.
No Replace the laser sensor because there is a short between circuits in the laser sensor.
(See LASER SENSOR REMOVAL/INSTALLATION .)
19 INSPECT BETWEEN FORWARD SENSING CAMERA (FSC) AND CONNECTOR C-42 FOR SHORT BETWEEN CIRCUITS 
  • Inspect for continuity between forward sensing camera (FSC) terminals E and C.
  • Is there continuity?
 Yes Go to the next step.
No Repair or replace the wiring harness between connector C-12 and connector C-42 because the wiring harness is shorted between circuits.
20 INSPECT BETWEEN FORWARD SENSING CAMERA (FSC) AND CONNECTOR C-27 FOR SHORT BETWEEN CIRCUITS 
  • Disconnect connector C-27.
  • Inspect for continuity between forward sensing camera (FSC) terminals E and C.
  • Is there continuity?
 Yes Go to the next step.
No Repair or replace the wiring harness between connector C-42 and connector C-27 because the wiring harness is shorted between circuits.
21 INSPECT FORWARD SENSING CAMERA (FSC) FOR SHORT BETWEEN CIRCUITS 
  • Disconnect the forward sensing camera (FSC) connector.
  • Inspect for continuity between forward sensing camera (FSC) terminals E and C (wiring harness side).
  • Is there continuity?
 Yes Repair or replace the wiring harness between the forward sensing camera (FSC) and connector C-27 because the wiring harness is shorted between circuits.
No Replace the forward sensing camera (FSC) because there is a short between circuits in the forward sensing camera (FSC).
(See FORWARD SENSING CAMERA (FSC) REMOVAL/INSTALLATION .)
22 INSPECT BETWEEN CONNECTOR C-33 AND DLC-2 FOR SHORT BETWEEN CIRCUITS 
 Yes Repair or replace the wiring harness between connector C-33 and DLC-2 because the wiring harness is shorted between circuits.
No Go to the next step.
23 INSPECT BETWEEN START STOP UNIT AND CONNECTOR C-33 FOR SHORT BETWEEN CIRCUITS 
  • Inspect for continuity between start stop unit terminals 2M and 20.
  • Is there continuity?
 Yes Go to the next step.
No Go to Step 25.
24 INSPECT START STOP UNIT FOR SHORT BETWEEN CIRCUITS 
  • Disconnect the start stop unit connector.
  • Is there continuity between start stop unit terminals 2M and 20 (wiring harness side).
  • Is there continuity?
 Yes Repair or replace the wiring harness between the start stop unit and connector C-33 because the wiring harness is shorted between circuits.
No Replace the start stop unit because there is a short between circuits in the start stop unit.
(See START STOP UNIT REMOVAL/INSTALLATION .)
25 INSPECT BETWEEN EPS CONTROL MODULE AND CONNECTOR C-33 FOR SHORT BETWEEN CIRCUITS 
  • Inspect for continuity between EPS control module terminals 2B and 2D.
  • Is there continuity?
 Yes Go to the next step.
No Go to Step 27.
26 INSPECT EPS CONTROL MODULE FOR SHORT BETWEEN CIRCUITS 
  • Disconnect the EPS control module connector.
  • Is there continuity between EPS control module terminals 2B and 2D (wiring harness side).
  • Is there continuity?
 Yes Repair or replace the wiring harness between the EPS control module and connector C-33 because the wiring harness is shorted between circuits.
No Replace the EPS control module because there is a short between circuits in the EPS control module.
(See STEERING WHEEL AND COLUMN REMOVAL/INSTALLATION .)
27 INSPECT JB No. 2 FOR SHORT BETWEEN CIRCUITS 
 Yes Replace the JB No. 2 because there is a short between circuits in the JB No. 2.
No Go to the next step.
28 INSPECT BETWEEN CONNECTIVITY MASTER UNIT AND CONNECTOS C-34 FOR SHORT BETWEEN CIRCUITS 
 Yes Go to the next step.
No Go to Step 30.
29 INSPECT CONNECTIVITY MASTER UNIT FOR SHORT BETWEEN CIRCUITS 
  • Disconnect the connectivity master unit.
  • Inspect for continuity between connectivity master unit terminals 2E and 2F (wiring harness side).
  • Is there continuity?
 Yes Repair or replace the wiring harness between connectivity master unit and connector C-34 because the wiring harness is shorted between circuits.
No Replace the connectivity master unit because there is a short between circuits in the connectivity master unit.
(See CONNECTIVITY MASTER UNIT (CMU) REMOVAL/INSTALLATION .)
30 INSPECT BETWEEN SAS CONTORL MODULE AND CONNECTOS C-34 FOR SHORT BETWEEN CIRCUITS 
  • Inspect for continuity between SAS control module terminals 3K and 3L.
  • Is there continuity?
 Yes Go to the next step.
No Go to Step 32.
31 INSPECT SAS CONTORL MODULE FOR SHORT BETWEEN CIRCUITS 
  • Disconnect the SAS control module.
  • Inspect for continuity between SAS control module terminals 3K and 3L (wiring harness side).
  • Is there continuity?
 Yes Repair or replace the wiring harness between SAS control module and connector C-34 because the wiring harness is shorted between circuits.
No Replace the SAS control module because there is a short between circuits in the SAS control module.
(See SAS CONTROL MODULE REMOVAL/INSTALLATION [TWO-STEP DEPLOYMENT CONTROL SYSTEM] .)
(See SAS CONTROL MODULE REMOVAL/INSTALLATION [STANDARD DEPLOYMENT CONTROL SYSTEM] .)
32 INSPECT BETWEEN CONNECTOR C-09 AND CONNECTOR C-34 FOR SHORT BETWEEN CIRCUITS 
 Yes Repair or replace the wiring harness between connector C-34 and connector C-09 because the wiring harness is shorted between circuits.
No Go to the next step.
33 INSPECT BETWEEN AUDIO AMPLIFIER AND CONNECTOR C-09 FOR SHORT BETWEEN CIRCUITS 
 Yes Go to the next step.
No Go to Step 36.
34 INSPECT BETWEEN AUDIO AMPLIFIER AND CONNECTOR C-40 FOR SHORT BETWEEN CIRCUITS 
  • Disconnect connector C-40.
  • Inspect for continuity between audio amplifier terminals 2L and 2N.
  • Is there continuity?
 Yes Go to the next step.
No Repair or replace the wiring harness between connector C-09 and connector C-40 because the wiring harness is shorted between circuits.
35 INSPECT AUDIO AMPLIFIER FOR SHORT BETWEEN CIRCUITS 
  • Disconnect the audio amplifier connector.
  • Is there continuity between audio amplifier terminals 2L and 2N (wiring harness side).
  • Is there continuity?
 Yes Repair or replace the wiring harness between the audio amplifier and connector C-40 because the wiring harness is shorted between circuits.
No Replace the audio amplifier because there is a short between circuits in the audio amplifier.
(See AUDIO AMPLIFIER REMOVAL/INSTALLATION .)
36 INSPECT INSTRUMENT CLUSTER FOR SHORT BETWEEN CIRCUITS 
  • Disconnect the instrument cluster connector.
  • Is there continuity between instrument cluster terminals B and D (wiring harness side).
  • Is there continuity?
 Yes Repair or replace the wiring harness between the instrument cluster and connector C-09 because the wiring harness is shorted between circuits.
No Replace the instrument cluster because there is a short between circuits in the instrument cluster.
(See INSTRUMENT CLUSTER REMOVAL/INSTALLATION .)
37 INSPECT PCM FOR SHORT BETWEEN CIRCUITS 
  • Disconnect the PCM connector.
  • Inspect for continuity between PCM terminals 2AK and 2AL (wiring harness side).
  • Is there continuity?
 Yes Repair or replace the wiring harness between the PCM and front body control module (FBCM) because the wiring harness is shorted between circuits.
No Replace the PCM because there is a short between circuits in the PCM.
(See PCM REMOVAL/INSTALLATION [SKYACTIV-G 2.0, SKYACTIV-G 2.5] .)
scientia non olet · About LEMON Manuals